231010031032220 has 24 divisors (see below), whose sum is σ = 529222980183408. Its totient is φ = 84003647648000.

The previous prime is 231010031032219. The next prime is 231010031032289. The reversal of 231010031032220 is 22230130010132.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 231010031032192 and 231010031032201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 525022797581 + ... + 525022798020.

It is an arithmetic number, because the mean of its divisors is an integer number (22050957507642).

Almost surely, 2^{231010031032220} is an apocalyptic number.

231010031032220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231010031032220 is an abundant number, since it is smaller than the sum of its proper divisors (298212949151188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231010031032220 is a wasteful number, since it uses less digits than its factorization.

231010031032220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050045595621 (or 1050045595619 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 231010031032220 its reverse (22230130010132), we get a palindrome (253240161042352).

The spelling of 231010031032220 in words is "two hundred thirty-one trillion, ten billion, thirty-one million, thirty-two thousand, two hundred twenty".